Valve mechanism



Patented May 21, 193s 2,001,818'

UMTED STATES PATENT OFFICE VALVE MECHANISM Oswaldlluda, Corsieana, Tex., assigner to Americm Well a Prospecting Company, Corsicana, Tex., a corporation of Texas Application June 30, 1932, Serial No. 620,122 zclaims. (c1. 251-144) This invention relates to a valve mechanism. pressible material such as rubber. Normally An object of the invention is to provide a valve this packing is approximately rectangular in cross mechanism of the character described particusectional contour, as is indicated by the dotted larly designed for use 'in slush pumps and for lines in Figure 3, but when it is seated in the l similar purposes and having anovel type oi' packgroove 3 and the seat 2 is driven into place the 5 ing exposed to the pressure 'of the iluid being packing 4 will ll out partly or overflow the space pumped for packing the joint between the valve produced by the groove 3 and the upper portion seat and the adjacent part of the pump wherein of partition I, forming a lip 5, as shown in Figure the valve mechanism is located. 1 and in any case leaving a portion of the pack- Another object of the invention is to provide in ing 4. exposed to the action of the iluid pressure, 10 a valve mechanism of the character described, a this pressure forcing the packing l down and outvalve having an annular insert oi rubber or simiwardly against partition I and down and inlar resilient material retained in the valve in a wardly against seat 2, as shown in Figure 3 and a novel manner and arranged to co-act with the fluid tight joint between partition I and seat 2 l5 valve seat to form a close tting joint when the will be formed effectively preventing any leakage 15 valve is seated. of uid.

Another object of the invention is to provide There is a disc like valve 6 which has an upin a valve mechanism, a valve having a stem and standing stem "I, preferably tubular, which works a guide all formed integrally together. through the bearing 8 above and this valve has a 29 With the above and other objects in view, the depending guide 9 which works through the 20 invention has particular relation to certain novel bearing III of the spider II carried by the seat 2. features of construction. arrangement 0i parts The vvalve 6, stem 1 and guide 9 are preferab1y and use, an `example Of Which is given in this formed integrally. The valve has a tapering anspeciilcation and illustrated in the accompanynular face I2 which opposes and is adapted to ing drawing, wherein: A seat against the inwardly converging face I3 of 25 Figure 1 shows a sectional view of the valve the valve seat. The valve has an annular exmechanism, as mounted in the pump. ternal groove I4 therearound in which is seated Figure 2 shows a bottom plan view .of the valve a ring I5 of yieldable material such as rubber and seat, and this ring extends out beyond the valve proper 30 Figure 3 ShOWS al1 enlarged frgmentary transand is adapted to overlie, and to form a close ilt 30 verse sectional view of the seat as mounted in against, the uppery end of the valve seat when the the pump, showing the packing as subject to presvalve is closed. The ring I5 is disposed so as to sure. break the joint between the contacting faces i2, l Referring now more particularly tothe drawing I 3, when the valve is closed and is held rmly wherein like numerals of reference designate seated by the pressure of the iluid to prevent any 35 similar parts in each of the ilgures the numeral I leakage between the contacting faces I2, I3. 'I'he designates a transverse partition of a slush pump outer wall of the groove I4 has an annular keywhich separates the inlet chamber from the disway I6 therein and a ring like key Il is seated charge chamber oi' the pump. A plunger (not in said keyway and presses into the material of 40 shown) works in the pump cylinder and draws the ring I5 so as to retain said ring securely in 40 the iiuid to be pumped into the inlet chamber place. a'nd forces the fluid under great pressure through There is a coil spring I 8 which is not indispenthe valve mechanism into the discharge chamsable but which may be used if desired, to' assist ber and thence out through the discharge line in in seating the valve 6 and in holding the same a well known manner. closely seated. 45

Driven or otherwise secured in the opening I' It is obvious that mechanical changes may be of the partition there is an annular valve seat 2 made in the valve mechanism described Without with which the valve, hereinafter described, codeparting from the principle of the invention and operates. it is not to be understood that the specic form The upper end of the valve seat 2 is reduced so shown must be necessarily adhered to since the 50 that when said seat is driven in place said upper drawing and description merely illustrate what end, will be spaced from the partition I and this is now considered to be a preferred form of the reduced upper end of said seat has an annular invention by way of'illustration only, while the groove 3 therearound. Seated in this groove 3 broad principle of the invention will be defined there is an annular packing l formed oi comby the appended claims. 5 5

What I claim is: Y

1. In a valve mechanism a valve having an annular groove therearound, a resilient packing ring in said .groove having a free margin which extendsbeyond the valve proper and having its inner nargn thicker than said free margin, one

wall of said groove having` an annular half round recess and anannular lock ring placed in said recess and surrounding said thickened margin and pressing into the material of the packing ring to lock said packing ring in place.

2. In a valve mechanism a seat support having an opening to receive a valve seat, a valve seat in said opening and having an annular `tace and provided with an external ycounter-sunk sur- -rounding groove which is inwardly widened. a 

